Rear View camera question...

you'd have to do some digging around in the wiring, but if it works like any other reverse cam, there is a logic board that is activated by the 12v reverse line, which turns the camera on and automatically switches the input. with MB, that's a pretty big if. it may well be that the COMAND unit gets its info solely from the ecu, canbus etc.
if it were the former, you could run some kind of inline switch from an acc line to that reverse input line and then toggle the switch to simulate the vehicle being in reverse.
i don't see you getting this activated in software or having it selectable via the interface.
just fyi, i've had reverse as a selectable input (on a difference vehicle). the cool factor wears off pretty quick
Heh, I actually wanted to keep the rear view camera on because I happen to get tailgated alot (I blame my pedobear sticking his face out) and the fact that just today I nearly took the front end of an S2000 off because that thing is so small and literally too short to see in the wing mirror while it was riding in the blind spot.
@Ikchris
The keyword is "SELECTABLE"







